7.20WASTEWATERDISCHARGEDANDWASTEGASEMISSIONINMAINYEARSYearofwhichIndustrialWasteWaterResidentialWasteWater198519.6014.994.6111.13199019.9913.326.679.64199119.5813.256.338.66199220.2813.706.589.0619...